Impact of JN.1 booster vaccination on neutralisation of SARS-CoV-2 variants KP.3.1.1 and XEC

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Abstract

The SARS-CoV-2 KP.3.1.1 lineage is currently the dominating lineage on several continents. In parallel, the XEC lineage, a recombinant of KS.1.1 and KP.3.3, is on track of becoming the next dominant lineage in Europe and North America. Here we performed a rapid virological characterisation of the XEC lineage and studied the impact of JN.1 mRNA booster vaccination on KP.3.1.1 and XEC neutralisation.

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europepmc
last seen: 2026-05-20T01:45:00.602351+00:00
unpaywall
last seen: 2026-05-24T02:00:01.246996+00:00
License: CC-BY-NC-ND-4.0